Dan P does studies that help this type of thread:
They are taking measure of the constituents of the waste that sandbeds trap, pretty much all implied risk in this thread is attributed to one or more types of waste.
If they find significant nitrate support from detritus, or very low correlation of nitrate storage in detritus it still won't change direction in the sand rinse thread->detritus is too risky to transfer we would rather blast it out or remove bed altogether. If they do find it contributes nitrate when compounded years in a typical Berlin style sandbed then that would explain a lot
I'll be astounded if they measure it low in contribution, it's more fun to pen the stuff as the evil of the aquarium lol
perhaps oxic states matter, Paul B has no particular fish problems when he diatom cleans, but he is kicking up reverse dsb waste which oxidized from the design of the reverse flow undergravel filter compared to a sits-on-bottom sandbed.
Deep dredges from older sandbeds or sandbeds of different grain sizes might yield varying states of protein in decay, and subsequent nitrogen species to be contributed. seeing someone take time to measure using lab gear and control is rare gem
The hobby is currently shifting towards throughput and nonstorage of waste, rollermats to catch all, how we handle particulate matter is changing in the hobby.
What’s In Your Substrate?
After several conversations with @taricha and @brandon429, I became interested in measuring the amount of organic material in the substrate of my fish only system. One method I found uses basic KMnO4 to estimate the chemical oxygen demand (COD) in a sample. The amount of KMnO4 consumed...
www.reef2reef.com
They are taking measure of the constituents of the waste that sandbeds trap, pretty much all implied risk in this thread is attributed to one or more types of waste.
If they find significant nitrate support from detritus, or very low correlation of nitrate storage in detritus it still won't change direction in the sand rinse thread->detritus is too risky to transfer we would rather blast it out or remove bed altogether. If they do find it contributes nitrate when compounded years in a typical Berlin style sandbed then that would explain a lot
I'll be astounded if they measure it low in contribution, it's more fun to pen the stuff as the evil of the aquarium lol
perhaps oxic states matter, Paul B has no particular fish problems when he diatom cleans, but he is kicking up reverse dsb waste which oxidized from the design of the reverse flow undergravel filter compared to a sits-on-bottom sandbed.
Deep dredges from older sandbeds or sandbeds of different grain sizes might yield varying states of protein in decay, and subsequent nitrogen species to be contributed. seeing someone take time to measure using lab gear and control is rare gem
The hobby is currently shifting towards throughput and nonstorage of waste, rollermats to catch all, how we handle particulate matter is changing in the hobby.
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